Machine and method for forming bristles



July 1, 1941. R. MAROGG MACHINE AND METHOD Fon FoRMING BRIsTLEs Filed April 27, 1939 v l5 Sheets-Sheet l July l, 1941. R MARQGG 2,247,957

MACHINE AND METHOD FOR FORMING BRIsTLEs Filed April 27, 1959 5 sheets-sheet 2 RICHARD MARDEE., EYMZ/.vw H5 ATTDRNEY.

July 1,1941. R `MARQGGv v2,247,957

MACHINE AND METHOD FOR FOMING BRISTLES HE. TTCIRNEY.

July l, 1941- R. MARQGG 2,247,957

MACHINE AND METHOD FOR FORMING" BRISTLES Filed April 27, 1939 5 Sheets-Sheet 4 INVENTUR: RicHARD MARUEIE,

H5 ATTURNEY.

July l, l941- I R. MAROGG 2,247,957

MACHINE AND METHOD FOR FORMING BRISTLES A iled April 2?, 1959 5 sheets-sheet 5 9 FT' 90 9/ /af l H 4 IVETCI: MW' Rim-ARD MARCHES,

H E' AT1-1:1 RNEY.

Patented July 1, 1941 OFFICE MACHINE ANDI METHOD FOR FORlVIIN BRISTLES Richard Marogg, New York, N. Y..

Application April 27, 1939, Serial No. 270,277

29 Claims.

My present invention relates to an improvement over the bristle shown in my Patent No. 2,138,872, which issued December 6, 1938, and to a novel machine and method for making the bristle.

My said patent illustrates a bristle, and particularly one formed of metal, which is especially intended for use with a cushion back hair brush provided with wire bristles. In accordance with my prior invention, the bristle is formed with an enlargement at the end of the bristle and a second enlargement lor head thereon spaced from the rst mentioned head sufficiently to secure the bristle in position in an opening in the brush pad with the two heads engaging opposite sides thereof. In practice, the heads or enlargements on the wire bristles were up-set from the metal. Bristles of the gauge that are contemplated by my present invention cannot be formed by upsetting the metal and I have provided a machine and method by which enlargements, either singly or in spaced relation, may be secured to the bristle without the necessity of up-setting the metal.

My ypresent invention relates to the machine for forming the bristles, and to the novel method employed for forming bristles.

The objects of my invention will appear in the specification and the novel features thereof will be more particularly pointed out in the claims.

My invention will best be understood by reference to the accompanying drawings in which I have illustrated a preferred embodiment thereof and in which Fig. 1 is a plan view of an automatic machine embodying my invention;

Fig. 2 is a sideview thereof, partially broken away;

Fig. 3 is an end view;

Fig. 3a is a fragmentary side view, partially in section, of the device for forming U-shaped elements from short, straight wires;

Fig. 4 is a sectional elevation taken along `the line 4-4 of Fig. 1;

Fig. 5 is a section taken along the line 5-5 of Fig. 4, looking in the direction of the arrows;

Fig. 6 is a fragmentary perspective view of a device for removing formed bristles from the machine;

Fig. 7 is an end View of the carriage and associated parts;

Fig. 8 is a fragmentary plan View illustrating the feeding mechanism and associated parts for feeding to the machine the two wires which form spaced rings around the bristle;

Fig. 9 is a sectional view taken along the line 9-9 of Fig. 7 :and illustrating the means for cutting the wires which form the encircling rings about the bristle; y

Fig. 10 is a sectional perspective View through the ybottom portion of the die and illustrating one of the slidable die members on the upper side thereof and other associated parts in elevation;

Fig. 11 is a sectional view through one of the bristle receiving nozzles;

Fig. 12 is a perspective View of the mechanism for operating the former for the U-shaped members which later encircle the bristle;

Fig.'13 is a perspective View of the mechanism for feeding the two wires from which the rings are formed, to the device;

Fig. 14 is a perspective view showing the cam which operates the carriage plate, and

Fig. 15 is a perspective view of one of the pins which forms a bristle.

Like reference ioharacters indicate like parts throughout the drawings.

Referring to the drawings in which I have illustrated the preferred form of the device for carrying out my invention, a bed yplate I0 is supported on .a table, on legs, or in any desired manner. A frame I| is supported beneath the bed plate |0.by suitable bolts I2 and spacers I2. Bearing supports I3 are mounted on the plate I and is provided with upstanding standards I4 in which an operating shaft I5 has its bearings, the shaft being driven by any suitable means, here illustrated as a pulley IB.

Cams |8, I9, 20 and ||4 (Fig. 1) are mounted on the shaft I5 for a purpose which will'be more fully hereinafter described. A crank arm 2| (Fig. l) is mounted on a hub 22 (Fig. 1) suitably secured, as by a set screw 22| to the shaft l5. A connecting rod 23 is attached at one end to said crank arm and the opposite end thereof is Iconnected by a ball and socket joint 24 to one end of an arm 25 which is pivoted at its opposite end as at 26 (Fig. 1) as by a screw to bed plate I0.

Wire feeding and bristle forming mechanism The connecting rod 23 and the arm 25 which is actuated thereby operate the mechanism which feeds the bristle forming wire, in the manner hereinafter described, into nozzle 48 (Figs. 1 and 5). A link 21 is pivoted as at 28 to the arm 25 and is connected as at 29 to a sliding plate 30 guided in its movements by brackets 30| (Figs. 1 and 4) secured to plate 302. A rack bar 3| is mounted on and secured to the sliding plate 30, as by bolts 3|| (Fig.` 5) and is provided at one side with teeth 32v meshing with the teeth of a gear 33 secured to a shaft 34 as by a set screw 35, as best indicated in Fig. 5. The shaft 34 is supported in a stepped bearing 34| in the plate 302 and has a bearing as at 342 in a plate 343 which is supported by bolts 344 and spacers 345 on plate 302.

to an arm 392 pivoted at 393 to the plate 343.-v

The friction feed wheel 31 which is pivoted Aat A plurality of nozzles are mounted in equally lspaced relation on a rotatable disc 13 mounted -on a vertical shaft 14. The disc is provided with 395 on the arm 392 is thus forced against :the l" wire 38 which is. in turn, forced against the feed An operating arm 40 (Fig: 1) which lis actuated by shaft 34 is secured to the upper-*end wheel 36.

thereof by means of a clamping screw 4| passing through the split end thereof. To the cuter end ,of the arm 40 is pivoted a pawl 42 which is held in engagement with a ratchet wheel 43 by. means of a spring 44. During the forward movement cf .the rack bar 3| to the position indicated in Fig.

1, the shaft 34 is rotated clockwise as viewedfin Fig. 1 and rotates the arm 48 and the paw] 4'2'to move the ratchet wheel 43 in a. clockwise direction-where it is retained in anY advanced position .by a stationarypawl 45. Then, during the reverse movement ofthe rack bar, the arm '46 is moved counterclockwise as viewed in Fig. 1, the pawl 42 merely Vriding over the Yteeth'` o'f the ratchet wheel 43.V j

The bristle forming wire 38 is fed through a tubular member 46 (Fig. vl) and vthrough a suitable opening (notillustrated) in a guidemember 41 into a bristle supportingno'zzle 48, the details of which are more particularlyv illustrated in Fig. 11. The nozzle 48fis provided with an opening 4 9 into whichthewirek 38 is fed. In the embodiment of my invention illustrated, the

nozzle 48 is provided with a threaded opening 5|) in which is received a stop member indicated generally at 5| provided with a stern 52 which is received in a contracted opening 53. The threadedfhead 54 of the stop member is preferably splitas .at t55 in order that the head may be slightly spread by a suitable tool and retained in .any

desired position within the nozzle.V The end of the nozzle may conveniently be closed by a threaded member 56 formed with ya vscarfed head .51. lA rollerY 58 is mounted on `the plainvcylindrical portion of the threaded member ,5.6" for la purpose which will be hereinafter more4 fully 1described. The wire 38 -is Vretained 'in `position against the yfront end ofthe stem 52 by a spring" 59 mounted on the exterior of ythe nozzle and thefree endv of Ywhich engages a plunger 6 0 Apassing through an opening 6| in the' nozzle, the

inner end of the plunger 6I) engaging the wire and thus retaining it in the position towhich it is fed. The nozzle 48 is normally retained in the horizontal-position illustrated inFig. n2 by means lof 'a spring 62 which is connected` lto the outer end of an arm 63 (Figs. 2 and 1 1) Which is secured to a trunnion 64 on which the nozzle is mounted The spring 62l normally retainsthe nozzle in the position illustrated in Fig. 11 against a threaded stop 65 in the base of a standard ,66cm which the nozzle is mounted.

` @When the correct amountof wire hasbeenfed' into the nozzle against thstemf52, it is severed by acuttingelement 6.1 (Fig. c4) pivoted. at. 68 and provided with .a cutting edge 69 which is normally retained away 'from the wire by aspring "Tl/one `Iend of which is 'attachedtothe lower 'end ofthe cutting element v6'l land the oppositeend of which is-attach-ed 'to a 'fixed 'member '1| The` j-cut-tingelement v611s actuated by'an L-shaped Y meinberlin mounted on the Iarm '-25 (Fig,v 4)

which engages the lower end of the 4cuttifig ele- 'aplurality'o'f pinsV 15 extending through and secured within suitable openings in the disc and .projecting'beneath the same as shown in Fig. 2. Means are provided for moving the disc angu- "larly' through a desired angle, here illustrated at 45 at each movement, when there are eight nozzles, as illustrated, and during the reverse Y 23 tand the arm 25 are retracted, the disc-13 is 'frame 98 (Fig. --l). V'Ifeedvvvheel and associated .parts are 7Vmounted is moved ."through one step. VThe hook may 'convenientlybe'retained in engagement with agiven p'n by a spring '|9 attached at one A'end to the arm 25 'and atthe opposite end to an arm 8i) forming Va bell crank w'ith'the arm 16 and ncrnially holding the arm against a stop 85|.V The (disc Ais retained'in the exact position to whichit ismoved'by an arm'i (Fig. 1) pivotedat 82 and provided Vat its free end with a 'roller 83 which is received in successive'notches 84 formed in th'eperiphery of the disc 'I3 and .one of vvwhich is illustrated indotted lines in Fig, 1 adjacent the bristle 'holder 48.

. The nozzle 48 which 'has 'now been supplied Vwith a bristle, is 'rst -moved `to the neutralp'osition '46a'a'nd 'at `the next step is moved 'to .the

'position 48h where it is ready for the reception and formation of .two spaced rings thereon.

Riny forming 'operi/iranV One or more wiresare also fed-to the machine from which one or more rings are formed which Aare'then caused to surround'the bristle and are later integrallysecured thereto. In the embodiment of my invention illustrated, two wires '85 are fed from suitable reels (notillustrated) to -the machine by a feed'wheel 86 (Figs. 9 and 13) which is provided with grooves Blifor the Wires. The feed wheel 86 is mounted on ashaft 8 8 havingits'bearing inY a block 89. The wires-85 are retained against the feed wheel 816 by Vafriction wheel 90 which is mounted on a frame 9| (Figs. 9 and 13) and retained in engagement with the feed wheel and the wires85 by `a'spring'92'attachedatfone-end to 'said framej9| and'at ythe other end -to a stationary part 93. The feed wheel is actuated by a. ratchet -wheel 94 secured to the shaft 88 and which-engages a pawl 95 on anarm95a which is pivoted by means of a sleeve 66 (Fig. l) cna shaft -91 having its bearings in a The `block 3f9 in which the itselflmou'nted on a carriage 99 (Figs, 7 and B), preferably beveled at its edges, as indicated, fand slidable infguides |89, suitably secured to Athe frame. The carriage 99 is reciprocated bythe can1l|9 (Figs. y1 and 14) which engages a roller l'lmo'unted at the Iside Aand one -end of a pitman |182 which .is A'connected at its forward endto an intermediate portionoflthefcarriage 99V (Fig. 14) The -cam |9 moves the p-tmanearid the `carriage tel :the right, as vlewed'rneig `14, 4against the action of a spring |03 connected t-othepitman and to a stationary part while "the said -spring f thereto.

moves the carriage and associated parts in the opposite direction. When the carriage, therefore, is moved to the right as viewed in Fig. 13, the ratchet wheel 94 engages the paWl 95 which actuates the feeding mechanism, it being understood that while the pawl is pivotally mounted, it does not move with the carriage. The end of the pitman adjacent the cam I9L is preferably provided with a plate |02a having an elongatedopening |021) surrounding the shaft I5 in order that the shaft may not interfere with the movement of the pitman.

The two wires 85 which may be received from suitable spools, not illustrated, pass through curved guide tubes |04 (Fig. 13) from which they pass through openings in a block |05 (Fig. 10) into engagement with grooves |06 (Figs. 7 and 8) in one edge of a block |01 suitably secured on the upper side of one of the dies |08, suitably secured to the plate 99 by screws |09 or otherwise, the complementary die being indicated at and secured to the plate 99 by one or more screws I.

The Wires 85 are now in position to be severed by a cutting element ||2 pivoted as at ||3 (Fig. 9). cam |I4 on the shaft I5, which in turn actuates a roller |I mounted on an arm I|6 which is pinned on shaft 91 having its bearings in the frame 98. Also attached to the shaft 91 is an arm ||8 (Fig. 2) provided at its end with a pin .1

I I9 which is received in a slot |20 of the cutting element ||2 pivoted, as stated, at ||3. The cam ||4 is timed to actuate the cutting element at the time the two wires pass through the openings in the block |05.

In accordance With my invention means are provided rst for forming the pieces cut from the ring forming Wire into U-shape, then inserting the wire bristle into the bottom of the U- shaped wires and then closing the U-shapedwires around the bristle and attaching the same The described dies are mounted on the carriage, and at the time that the nozzle carrying the bristle arrives at the position 48h, the dies are retracted. Otherwise they would interfere with the movement of thebristle which at this time is projecting from .the forward end of the nozzle in the position 481). When the nozzle has arrived at the position 49h, the dies |08 and I0 are moved forwardly to the position indicated When the two Wires of suitable length have been cut, means are provided for forming the l wires into the shape of two Us. A former, indicated generally at |2|, in Fig. 12, is nowactuated by the operating shaft I5. The cam operates a roller |22 mounted on an'arm |23 which is fixed, as by a screw |24, to a shaft |25 having its bearings at |23 and |21 mounted on the frame 98. An arm |28 is also secured on the shaft |25 as by a screw |29 and is provided at its outer end with a yoke |30 which embraces and is pivotally attached at |30a to a vertically extendingpost |3| attached at its upper end to a plate |32, the end of the plate |32 in which the post |3I is received preferably being split as at |33 and clamped about the stem as by a set screw |34. When the post |3| is thus depressed-the lower end of the plate |32 engages the short lengths of wire which have been severed by the cutting element ||2 and forces the same downwardly between the two dies |08 and I I0 which are, at this The cutting element YI I2 is operated by a time, slightly spaced apart. The dies are prefer- 75 flame ably provided at their ends with grooves |35 (only one set being illustrated in Fig. 10), the plate |33 over which the dies move preferably being provided beneath the short wires ,with grooves |31 (Fig. 10). The plate |32' thus presses the short wires into the grooves and shapes them into U-shaped members.

The nozzle with its bristle and the dies are now in the position indicated in Figs. '1 and 9 and by moving the dies forwardly in the manner described, the bristle is guided by a funnel shaped member |38 into position in the Us formed-by the pieces of Wire. Means are also provided for retaining the bristle in position during thetime thatthe U-shaped members are bent around the bristle. An arm |39, pivoted at |40 is mounted on the carriage and moves forwardly with the dies to a position Where the inner end thereof is locatedv beneath the bristle. A second arm |4I, pivoted at |42, on a bracket |43 is disposed above the bristle. When the dies arrive at the position illustrated in Figs. 8 and 12, the outer end of the arm |39 engages a fixed curved member |44 thereby tilting the arm |39 about its pivot and exerting an upward force against the bristle. At the same time a plunger |45 (Figs. '1 and 12) engages the arm |4| to the left of its pivot thereby depressing the inner end of the arm above the bristle and gripping the bristle in position between the inner ends of the arms |39 and |4| and holding the same in position during the operation of forming the rings around the bristle as will now be described.

The two dies are now moved together by means of side cams I1 and I8 which engage levers |46 and |41 (Fig. l) and force the same apart. The levers are pivoted at |48' and |49, respectively, thereby moving together the dies |03 and |I0 to which the inner ends of the levers |46 and |41 are connected and which thereby engage the upper ends of the U-shaped members and pinch them together around the bristle and creating sufficient friction between the bristle and the rings that are now formed to prevent the latter from dropping from the bristle. Then, when the dieshave opened and been retracted, the nozzle and its bristle are ready to be rotated a further step to the neutral position 43c in Fig. l.

M cans for soldering rings to the bristle Means are also provided for soldering or other- Wise making the circular members which have thus been formed integral with the bristle. In the embodiment of my invention illustrated, the bristle is dipped successively into an acidbath and then into a bath of solder. A cam |50 is mounted at the outer edge of a sector plate |-5| andv in a position where it engages the roller 58 on the bristle receiving nozzle and tilts the outer end thereof downwardly about the axis 64 thereof into an acid bath |52 which is radially opposite saidcam |50 and the bristle and the rings surrounding the same are thus prepared for the succeeding solder treatment. When the nozzle arrives at the position 48e the nozzle is again similarly tilted by a second cam |53 and the end of the bristle is dipped into a bath of solder |54 andthe rings are thus soldered to the bristle in spaced relation, the space between the rings being just sufficient for the reception of the rubber pad in which the bristle is to be mounted. The bath of solder` may conveniently be heated by a gas |52a or other desired heating means. While I have specifically described the rings or projections as being made integral with the brislt'lesdcyfsoldering the same thereto, it Will be un- Yformed bristle from the nozzle.

tion` at theright, as viewedin. Fig. 1,v the 'arm |55 is likewise at theright of the position .illustrated .inzlig .1. .An varm .|55 is provided withdo'wntained against the arm |55 by a spring |59. .At ythe timeithat the free endof the bristle which is still-retainedin the nozzle arrives at 'the position Wherelthearm |55 is located, the arm |55 isin engagement with thevarm .|55 4and .the ybristle v-'rides .between thearms/I'Sy and |56 into a. notch V-itil -Where it is temporarily heldby the Vyspring .llattachedat its ends to the arms l| 55 and 155, respectively. Nom-when the member 30 (Fig. 1') moves-to the left,.the bristleis Withdrawn from the nozzle to a position over a receptacle |61.

The operation of the device embodying my invention Vis asfollows: Y

The rotation of the shaft |5 and the crank-arm 2| which is Secured thereto, actuates the connecing rod 23 and through the vdescribed mechanism actuates-the feed device, more particularly illustrated'in Fig. 5. The bristle forming Wire is at this time in alignment with the bristle holder 48. The feed mechanism feeds the wire into the bristle holder againstfthe stem 52 VvWhichis in affixed position'and which provides a bristle of predetermined length. The wire is then severed bythe cutting element El. The bristle holder 48 is then rotated totheneutral position 48a and then to the position 48h, Vthe dies |58 and ||0 .at 'this time .being retracted and out of the path `of :movement ofthe bristle in the bristle lholder. The 'ringforming Wires 85 are fed through the guide tubes H34 and block |05 at the forward edge of which the ringr forming Wires are .cut by the cutting element||'2, toform pieces of Wire of lengths appropriate for yforming rings which `are `to lsurroundthe bristle. The plate |32 (Fig. 12)

f is then forceddownwardlyagainstthe wires and formsthem into U-shaped pieces between the dies, las best-shown in Fig. 10. The dies are then 'moved forwardly `around-the bristle, the bristle occupying a position Within the U-shaped Wires. The dies are-then closed and the U-shaped wires are 1 pinched around the bristle With suflicient `force to cause the rings which are thus :formed togripthe bristle suiiiciently to retain them temporarily in position thereon. The vdiesare then opened and again retracted andthe bristle holder with the bristle contained therein `continues its 'movement until the bristle holder occupies the position iid over the acid bath |52, `at which time the roller`5 'on the bristle Yholder engages the cam-|53 which tilts the bristle holder about Litsgaxisandplunge's the .end of the bristle `to gwhioh the .ringsare attached into the acid bath' .preparatory to the soldering operation. YAt the next position, #Setof the bristle holden'rthe roller Vri-engagesthe cam |53 and plunges the .end of .the-:bristle into a bath -of solder which isgmaintainedin fluid condition by the' burner |52a.4

At Vthistirne the rear end of the arm |55 rides ibernea-tha fixed arm 62 thereby lifting' the'free'en'd i-o'f the arm. The bristle is `thereby released and drops intothe receptacle ll.

'.Waiidly lextending spaced ears `|51` pivoted to'rthe .arm-:1:55 yas-at .158. vThe Iarm |.56is normally vre- Y materials other than serres? .Assoonasithe roller. 58 is disengaged from 'the rnain |53, .the bristle holder is again moved ftol' the horizontal position. At this time the arm lzmdithe arm v|55'carried thereby are in the forward .position due to the movement of the .slidingsirack :39 and the lcontinued movement of the .bristle-holder to theposition 48j, causedr the bristle toride'between the larms |55 and |56 and `be gripped thereby. The movement of the `slidingxcrackeilfthen causes the arms |55 and |56 to'be `moved tothe position illustrated in Fig. 6 where theopposite end of the arm v|56 engages thenxed farm |62 yand opens the arms |55and {IJ-56, as illustrated :in Fig. 6, and permits the bristle inA nnish'ed lcondition with two rings or pro- {jections attached theretoto drop into the recep- "tacle zlbl.

'.Whi-le vI :have illustrated two rings applied to `the bristle in fspacedrelation, it Will be obvious that one ring only may be applied if desired. Furthermore, while Ithave described the bristle asformed from -a Wire, v,it will be understood that metal may be used for the bristle.. j

-While Ihave described my invention in its preferred embodiment itis 'to be understood that the words which I have used are Words of description rather than oflimitation and that changes within the ipurview of the appended claims may be made without departing from the true scope and spiritof my yinvention in its broadest aspects.

What I claim is:

1. In av bristle forming machine, means for feeding a bristle forming wire to said machine, means for cutting said wire into lengths appropriate-for a wire bristle, means for forming a laterally metal projection on said bristle and Y.separate therefrom, .and means for rendering said projection integral with said bristle.

;2.-I-n :a l.bristle forming 'machina means for feedingfa :bristle forming Wire to the machine, means'for-cutting the Wire into` lengths appropriate-.for a fwire bristle, means forforming a metal-ring about said bristle, and means for ap- .pl-ying-moltenzsolderpto the joint lbetween sai ,ring and fsaid bristle.

3..:In `la .bristle 'forming .machine means for feedinga 'bristle `forming Wire to the machine,

means for :cutting the Wire into lengths appro- Lpriate tfor a wire bristle, means for forming two vmetal rings about :said `bristle in spaced relation, and means for applying molten solder to the joint between .saidring and said bristle.

`4. In .a ybristle forming machine, a bristle holder, mean-s vfor feeding a bristle forming wire into said4 holder, means for cutting the wire'in said "holder of a .length appropriate to form a bristle, .means Yfor feeding a ring forming wire .to said machine', means for cutting said ring .'formingwireinto a ylength appropriate for Aformjing alring .abontsaid bristle, means for transfierringsaidbristlellolder with its bristle to a position adg'acent `the cutting means for the ring forming wire, and means for forming a length of .Wirecutfrom .saidring forming Wire into a .substantial .ring surrounding said bristle. .5.2 In a Abristle Aforming machine, a bristle holden-means for feeding a bristle forming Wire into-said bristle-holder, means for cutting said said .holder ofV a length appropriate to forma bristle, means for feeding a ring forming wire .to-.saidmachine means for cutting said ring formi-ng -wire into lengths appropriate for form- .ingmings about .fsaidbristle, means vfor trans- T75 ferringtsaid-bristle holder with its bristle to ,a

position adjacent the cutting means for the ring forming wire, means for forming a length' oi wire cut from said ring forming Wire to a ring surrounding said bristle and means for integrally attaching said ring to said bristle.

6. In a bristle forming machine, a bristle holder, means for feeding a bristle forming wire into said bristle holder, means for cutting the wire in said holder of a length appropriate to form a wire bristle, means for feeding two ring forming wires to said machine in spaced relation, means for cutting said ring forming wires into lengths appropriate for forming rings about said bristle, means for transferring said bristle holder with its bristle to a position adjacent to the cutting means for said ring forming wires, and.

means for forming two lengths of ring forming wires into rings surrounding said wire bristle.

'7. In a bristle forming machine, a bristle holder, means for feeding a bristle forming wire into said bristle holder, mean-s for cutting said wire in said holder of a length appropriate to form a bristle, means for feeding a ring forming wire to said machine, means for cutting said ring forming wire into lengths appropriate for forming rings about said bristle, means for transferring said bristle holder with its bristle to a position adjacent the cutting means for the ring forming wire, means for forming a length of wire cut from said ring forming wire to a, vring surrounding said bristle, and means for integrally attaching said ring to said bristle.

8. In a bristle forming machine, a rotatable platform, a plurality of substantially equally spaced bristle holders mounted on said platform and having outwardly directed wire receiving orifices, means for feeding a bristle forming wire into an orifice of a given bristle holder, means for cutting said wire in said bristle holder into a length appropriate for forming a bristle, means i' for feeding two ring forming wires in spaced relation to said machine, means for cutting said ring forming wires into lengths appropriate for forming rings about said bristle, means for rotating said platform step-by-stepto a position to bring said bristle holder and its bristle to a point adjacent the cutting means for said ring forming wires, and means for forming said lengths of ring forming wires into ring-s surrounding said bristle.

9. In a bristle forming machine, a bristle holder, means for feeding bristle forming wire into said bristle holder` means for cutting said wire while in said bristle holderof a length appropriate to form a bristle, means for feeding two 1 ring forming wires in spaced relation to said machine, means for cutting said ring forming wires of lengths appropriate to form rings around said bristle, means for forming saidv lengths into `generally U-shaped wires, means for transferring said bristle while in said bristle holder to a position adjacent to said U-shaped wires and means for forming said U-shaped wires ,into rings in spaced relation about said bristle.

l0. In a bristle forming machine, a bristle holder, means for feeding a bristle forming wire into said bristle holder, means forV cutting said wire while in said bristle holder of avlength appropriate to form a bristle, means for feeding two ring forming wires in spaced relation to said machine, means for cutting said ring forming Wires of lengths appropriate to form ringszaround said bristle, means for forming said lengths integenerally U-shaped wires, means for transferring said bristle while in said bristle holder to a po'-, sition adjacent to saidV U-shaped wires, -means for forming said U-shaped wires into rings in spaced relation about said bristle and means for integrally securing said rings in spaced relation about said bristle.

11. In a bristle forming machine, a bristle holder, means for feeding a bristle forming wire into said bristle holder, means for cutting said wire while in said bristle holder of a length appropriate to form a bristle, means for feeding two ring forming wires in spaced relation to said machine, means for cutting said ring forming wires of lengths appropriate to form rings around said bristle, means for forming said lengths of ring forming wires into generally U-shaped wires, means for transferring said bristle while in said bristle holder to a position adjacent'to said U-shaped wires, means for forming 4said -U'- shaped wires into rings in spaced relation about said bristle and means for soldering said rings to said bristle-While the latter is in said vbristle holder and in spaced relation on said bristle.

l2. In a bristle forming machine, a ybristle holder, means for feeding bristle forming wire into said bristle holder, means for cutting said wire while in said bristle holder to a length'appropriate to form a bristle, means for feeding two ring forming wires in'spaced relation to said machine, means for cutting said ring forming wires of lengths appropriate to form rings around said bristle, means for forming said lengths'into generally U-shape'd'wir'es, means for transferring said bristle while in said bristle holder to ap'osition adjacent to said U-shaped wires, means for forming said U-shaped'wires into rings in spaced relation about said bristle, a solder bath, and mean-s for tilting said bristle hol'oler` when in a position over said bath and thereby bringing the end of said bristle into saidbath.

13. In a bristle forming machine, a rotatable platform, a plurality of bristle holders mounted on -said platform in spaced relation, means for rotating said platform step-by-step, means, for

, feeding a bristle forming wire into a bristle holder in a given position, means for limiting the movement of said wire into said bristle holder, means forcutting said wirewhile in said bristle holder to form a bristle of a desired length, means located at another position of said holder for feeding two ring forming wires to` said machine in spaced relation, means for cutting said ring forming wire of lengths appropriate to form encircling rings about said bristle, means for forming said lengths of wire into U-shaped wires, means for rotating said platform to a. position where said bristle is adjacent to said U-shapeol wires,v means for moving said U-shaped wires into a position around said bristle while the latter` is in said bristle holder, and means for forming said U-shaped wires into rings around said bristle. Y l

14. In a bristle forming machine, a rotatable platform, a plurality of bristle holders mounted on ksaid platform .in spaced relation, means for rotating said platformstep-by-step, means for feeding a bristle forming wire into a bristle holder in a given position, means for limiting the movement of said wire into said bristle holder, means for cutting said wire while in said bristle holder to forma bristle of a desired length, means located-at another position of said holder for feeding two ring forming wires .to said Amachinein spaced relation, means for cutting said. ring forming wire of lengths Yappropriate'to formencircling rings aboutsaid bristle, imeans :for forming 'said lengths of vvwire into U-shaped wires, means for'rotating said platform to :a'positio'n Wheresaidibristle is adjacent to said U-shaped wires, means for movingfsaid .U-sh'a'ped wires -into fa position around said bristle -while lthe 'latter vis in "said bristle holder, means v'for forming said l'J-s'haped wresinto rings aroundsaid bristle, and means for'sold'e'ring said rings to said bristle while "the latter is 'in rsaid 'bristle holder.

1'5...In a bristle forming machine, means Vfor feeding a bristle forming wire to said machine, 'means' for cutting rsaid wire into lengths appropriat'e'to form a bristle, means `for forming a metal `projection .around va given bristle, 'means yfor 'rendering 'said Hprojection integral with said bristle, and means `forautomatically discharging said bristle from isaid machine. '16. In va 'bristle Aforming 'machine a Abristle holder, fmeans for 'feeding a bristle forming Wire into said bristle holder, `means for cutting said bristle form'ing wire to v'a'length appropriate to form 2a fwire bristle, means for feeding a ring iformingwire to `said machine, Ameans yfor cutting said ring forming Wire into lengths appropriate .to :form a ring'faround said bristle, means for forming afgivenflengthof said Vring forming wire into fa ring `surrounding sai-d bristle, 'means 'for integrally securing said --ring to said fbristlepand means foriautomatically discharging said wire bristle ffrom .fsaid machine.

.-1'7. :Inga 'bristle vforming machine, a :holder :for an:individual=bristle, vmeans for inserting a Wire bristle in rsaid holder and means Afor integrally securing a projection tofsaid lbristle While irl-said holder. Y .18. In a bristle forming machine, =a `holder Lfor an .individual bristle, means for inserting V.a Wire bristle in =saidrholder, Ameans V.for 'integrally securing .a projection -to .said vbristle while -in said holder and .means -forautomatically withdrawing said .bristle iromsaid holder.

r19. .In .a bristle forming machine,a `holder `for an individual bristle, means for inserting afwire bristlezin saidholder and .means for integrally Y securing two .rings in spaced relation on .said bristle. g

20..In `a bristle forming machine, Aa holder :for 4an individual bristle, .means .for vinserting .a wire bristlein saidholder, means for integrally` securing two .rings .in spaced .relation on .said bristle and-means for .automatically withdrawing said -bristle from .-sa-id holder.

.21..In .a .-bristle .forming .machina va .bristle holdengmeans for feeding a bristle forming Wire into said 'bristlelholden means vfor cutting said brs'tle.forming wire of .a lengthappropriate to Aform abristle while in said bristle holder,.means for'fee'ding two ring formingwires in .spaced relation'to said machine, means for cutting said ring forming Wires into lengths appropriate to provide rings surrounding said bristle, .a carriage, meansfor advancing and retracting said carriage,

co-acting dies .mounted on said carriage, me'aris.5

into generally U-shapedV forms and in spaced for bending two lengths of ring forming Wires relation between saiddies While said dies are retracted, means for. advancing said dies to a posi- .22S-The method of preparing a wire bristle whi'chfcomprises cutting 'a wire to a length appropriate to form a wire bristle, an-d securing rings to -a given wire in spaced relation by a soldering or like operation.

23. The method of forming a Wire bristle which comprises preparing a wire of appropriate length to iiorm a bristle, forming a second wire into a -U-shaped member surrounding said wire, and formingsaid member to a ring surrounding said Wire.

24. The method of vforming-a Wire bristle which comprises cutting a wire to a length appropriate tol'formawirebristle, forming two U-shaped Wire members .around Vsai-d -wire in spaced relation, closing said U-shaped'fmembers around said wire to formA rings, and integrally securing said rings tosaid lWireby a solderingor like operation.

125. The method of forminga Wire bristlewhich comprises cutting Iwire bristles from a wire to a length appropriate to form a wire bristle, lcutting Y a`second -wire into lengths appropriate to form tion Where said U-.shaped members surround said bristle, "and means for closing said dies while insaid 'advanced position, said dies being constructed and arranged to form said U-shaped members'intorings surrounding said bristle when closed.

rings about 'said wire bristle, forming a length cut -from said second wireto a U-shaped member, placing .said U-shaped member around said wire bristle, and -shaping 'said 'll-shaped member around fsaid bristle toa rin-g.

26. The method of forming-a wire bristle which comprises cutting-from a Wire a length appropriate for .forming a wire-bristle, cutting a second *Wire into length-s appropriate foriorming rings surrounding sai-d wire` bristle, forming a length of Wirecutffrom said-'second wire Vinto a generally YU -shape'd Wire, enclosing4 said 4wire bristle finsaid U-shaped wire, forming said U- shapedfmember to -a ring surrounding -said wire bristle, and integrally securing said ring to said wire bristle. r

-2'7. The fmethod of preparing a wire bristle whichcom-prises cutting a wirezinto lengths appropriateltoriorm a Wire bristle, cutting a second Wire .into a length appropriate to form a ring about said Wire bristle, vformingsaid second wire to .agenerally U-shapedmember in a die, movingsaid wire -bristle to a position adjacent said die, Lmoving said die .and the U-shaped member carried thereby .to .a `position Where said `wire bristle is .surrounded .by said UY-shaped member, then forming said U--shaped member into .a ring surrounding said Wire bristle.

to a generally U-shaped member in a die, moving said wire bristle to a position adjacent said die, moving said die and the vU -shaped member` carried thereby to a position where said wire bristle is surrounded bysaid U-shaped member, then forming said .U-shaped member into a ring surrounding .said wire bristle and integrally securing said ring to said wire bristle.

v29. Themethod of preparing a wire bristle which-comprises cutting a wire into lengths -appropriate to forma Wire bristle, cutting a second Wire into a length appropriate to form a ring about .said wire bristle, forming said second wire to a generally U-shaped member in a die, moving said wire vbristle tov a position adjacent said die, moving said 'die and the U-shaped member into a ring surrounding said wire bristle and soldering said ring to said wire bristle.

RICHARD MAROGG.

CERTIFICATE OF CORRECTION.

July 1, 19m.

RICHARD MAROGG.

pears in the printed specification Page LL, second Patent No'. 2,'21L7,957.

It is hereby certified that error ap quiring'correction as follows:

insert the word --extending--5 dwth this correction ther-ein he Case 1n the Patent office.,

A. D. 19m.

of the above numbered patent re column, line 57, claiml, after "laterally and that the said Letters Patent should be rea that the same may Conform to the record of' t Signed and sealed this 16th dayl of September,

Henry Van Arsdale,

(Seal) Acting Commissioner of Patents. 

